Refrigerating-machine.



M. BOYD. REFRIGERANNG MACHINE APPLlCATiON FILED I-AN. I3, 19I5.

Witnesses Patented Dec. 5, 1916.

i nection with a cold storage receptacle so as UNITED STATES PATENT .ICE.

MOODY Born, or'LoUIs vILLn, KENTUCKY. I

REFRIGERATING-MACHINE.

To aZZ whom it may concern:

Be it known that I, Moonr Born, a citizen of the United States, residing at Louisville, in the county of J efl'erson' and State, bf Kentucky, have invented a new and useful Refrigerating-Machine, ofwhichthe fdllowing is a specification. r

The present inventi ,'ments in 'a refrigerating machine, aiid'morer especially to a type of machine adapted to be used for domestic purposes and used in conto dispense with the use of, ice and the continual replenishin thereof,one object of the invention, being t e provision of an ammonia process, apparatus, in which the usual pressure or vacuum pump is dispensed with,

'- the desiredpressure and vacuumbeing produced by'heat and a coolingzaction, and a.

consequent expansion and contraption of the gas. A further ObJBCt of thepresent inventloh, is the provision of a simple and comparatively cheap apparatus of this"character-' which may be readily'install'ed iiiresidences and connected to a storage compartment so thatthe same will be properlyc'ool ed to produce the desired refrigeration.

With the foregoingand other objects in view which will appear as the descriptlon proceeds, the inventionresides in the combination and arrangement of parts and unthe "details of constructlon heremafte'r described 3"5 and"claimcd, it 'bei'ngfff understood that changes in the precise embodiment of the invention herein discld'sed can be ;made

within the scope of what ifis claimed without departing from the s t of the invention.

In the drawingsl is a diagram-- matic view of the com' I apparatus'em-' bodying the present invention. Fig.2 is a section taken on line2- -2Qf Fig. 1. p

' In carrying the presenti invention into operation, there is a supporting structure 1 to which is properly supported by any desired means, preferablyso as tobe swung into and out. of position, the receptacles or tanks 2 and 3, the same being preferably cylindrical tanks for containing aqua ammonia. Disposed below the respective tanks 2 and 3 are the heating devices 4 and's which'are indicativeof anyform of device for" produce ing the necessary temperature in t e tanks 2 and 3 to drive the ammonia gas from the same. a 7

Leading from the respective 2 and p Specification of lilietters Patent. 7 I 1 v Application filed January 1915. Serial No. 2,020.

' being connected to 1 J1" on relates to improv Patented Dec. 5, 1916.

3 are the gas conducting pipes 5 and 5', re-

lspectively, provided with the manually controlled valves 6 and 6, the pipes5 and 5' the coil 8 with a gage 7 interposed.

The coil 8 is dispcsed within the tank 9,

which is provided with water circulating valves 10 and 10 so that water may be circulated through the tank 9 to condense the ammonia gas fed from either one of the respective receptacles or tanks 2 and 3.-

An automatic relief valve ll is provided in the pipe 12 which is led from the coil 8, to retain the ammonia in the coil until a predetermined pressure is attained while the I reservoir or retaining tank 13 is in communication with the pipe 12 toreceive. the ammonia from the coil- 8 when released by the valve 11. I

A pipe 14 is led from the storage tank13 controlled by the manual valve 15, there being also connected to the pipe 14 a reserve ammonia holding tank 16, so that ammonia the brine tank 21. A return pipe 22 is led from the-coil 20 to the branches 23 and 23, which are in communication through the respective' pipes 24 and 24 with the tanks 2 and 3. Manually controlledvalves 25 and 25 are disposed at the junction of the pipes 23 and 24:, and 23 and 242 so that vthe respective tanks 2 and 3 may be alternately isolated from the apparatus.

In order to provide a means the respective tanks 2 and 8, and thus asfor'cooling sisting in the creation of a vacuum therein,

the purpose of which will later appear,there 1s disposed for swmgmg'movement to lncase either one ofthe tanks as desired, a water holding trough 26 as clearlyillustrated in Fig. 2. This trouglican be arranged to slide and swing upon a rod 26 supported adjacent the tanks 2 and 3 and within the structure 1.

From the foregoing description, the'oper- I derstood, but briefly stated it is as follows :-Assuming that the tank 2.is filled to assist in the circulation thereof.

with aqua ammonia, the valves 25 and 6 being closed so as to isolate the tank 3 from the apparatus, the burner 4; is ignited so as to heat the tank 2 and consequently drive the gas through the valve controlled pipe 5,

the valve 6 therein having been opened. The gas will then pass into the' coil 8 where it is condensed by the water in tank 9 and after a suflicient pressure has been -accumulated therein, the same'is automatically released by the valve 11 to pipe 12 into the storage tank 13, the same having been cooled and-then passed through the pipes 14 and 17 to the expansion valve 18 and finally into the coil 20 where the desired cooling action is had upon the brine within the tank 21. The gas flows back through the pipe 22 and the branches 23 and 24 into the tank 8, which may have been submerged in the trough 26 so as to cool the same and thus cause the gas contained therein to contract and thus produce the desired vacuum effect to produce the desired circulation. Thus the tank 2 produces the desired pressure to force the ammonia through the system while the tank 3 acts as a vacuum producing means After i the ammonia has been accumulated in the tank 3, the burner 4 is cut out and the I trough 26 placed around the tank 2, or the tank 2 permitted to cool slowly. While the tank 2 is acting as an absorber the valve 25 is open and the valve closed, and the 'clrculation 18 through the pipes 22, 23 and and the like, that the use of ice-is dispensed with, and that an ammonia refrigerating apparatus without the usual compressor or vacuum pump is PIOVlClQCl, the desired circulation being produced by the pressure of the gas itself and the absorption therco It will also be noted that after the ma.- chine is in operation, it will not be necessary to cool the tanks 2 or 3 with water in the trough 26, except in an emergency, nor will it be necessary to stop re 'geration while the gas is being generated. When generating the as in tank 2, the tank 3 will be the absorlxar, this action alternating. The tank' 13 is designed to hold sufficient ammonia for one or moredays refrigeration and will thus permitthe natural cooling of the tanks 2 and'3 withoutthe use ofrunning water.

The reserve tank 16 is of such a size as to hold suflici'ent ammonia to operate themachine for several hours at night, the valve '15 being closed at this time and the a 7' paratus not'using asmuch ammonia for t 0 sitionrto receive either. of the'tanks, said trough being mounted to swing relative to the tanks, a refrigerating coil, a pipe leading from said coil to the two tanks, valves for controllingf'itlie flow of gas ,from said pipe to the"re'spe' ;tive tanks, at condensing coil, a valved piife leading from each tank to thecoridhtisaiigboil, a relief valve adja cent'the condenser, liquid storage tanks, a pipe extending'jrom the relief valve to the tanks and froni s'aid tanks to the refrigerating coil, andfan expansion valve interposed betweelrsaid pipeand the refrigerating coil. ,.Imtqstnnony 'th 't I claim the-foregoing as myaown, l V creto affixed my signature in the presence of two witnesses.

Moonr BOYD.

, Witnesses z 

